<!--
{
  "availability" : [
    "macOS: 10.10.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "AppKit",
  "identifier" : "/documentation/AppKit/NSVisualEffectView/BlendingMode-swift.enum/withinWindow",
  "metadataVersion" : "0.1.0",
  "role" : "Case",
  "symbol" : {
    "kind" : "Case",
    "modules" : [
      "AppKit"
    ],
    "preciseIdentifier" : "c:@E@NSVisualEffectBlendingMode@NSVisualEffectBlendingModeWithinWindow"
  },
  "title" : "NSVisualEffectView.BlendingMode.withinWindow"
}
-->

# NSVisualEffectView.BlendingMode.withinWindow

A mode that blends and blurs the visual effect view with contents behind the view in the current window only.

```
case withinWindow
```

## Discussion

Views using this blending mode must not overlap each other.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)